Batting for the establishment of a National Education Commission, NAAC director D.P. Singh on Sunday urged Human Resource Development Minister Smriti Irani not to "demolish" the existing regulatory bodies in education while setting up the commission."I do think a permanent think tank in education is necessary to deal with different dimensions in education," the National Assessment and Accreditation Council director said."But it shouldn't be done by demolishing the existing regulatory bodies across states," Singh said at a national seminar on New Education Policy here.Singh voiced his request in front of Irani, who was present at the valedictory session of the seminar.The NAAC is a statutory body of the University Grants Commission.At the seminar, representatives of over 16 universities pitched for a National Education Commission.Singh also stressed on reducing the time gap before bringing in a national education policy. "There shouldn't be a gap of five years in consideration a new education policy."